Dr. Margaux K. Snider, MD

  • San Luis Obispo, CA
  • Emergency medicine physician
NPI1659538999PAC ID5294976965
Medicare services, 2024
865
Medicare patients, 2024
561
Part D claims, 2024
389
MIPS score, 2024
97
Hospital affiliations
2
Practice address
1911 Johnson Ave, San Luis Obispo, CA 93401
Practice phone
Call (805) 543-5353
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Dignity Health - French Hospital Medical Center

Hospital · San Luis Obispo, California

See all 8 affiliations

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Dr. Margaux K. Snider is an emergency medicine physician in San Luis Obispo, California

Dr. Snider practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health.

Dr. Snider's NPI, 1659538999, was assigned on May 22, 2008. Dr. Snider graduated from OHSU School of Medicine in 2008. Dr. Snider holds California license A125626.

NPI and contact details
Medicare PAC ID
5294976965
NPI enumeration date
May 22, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 543-5353
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Margaux K. Snider practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California

Dr. Snider's primary practice is Dignity Health - French Hospital Medical Center, at 1911 Johnson Ave, San Luis Obispo, CA 93401 in San Luis Obispo County. The practice phone is (805) 543-5353.

Source: Dmand AI Affiliation Data

Dr. Margaux K. Snider is affiliated with 5 sites of care and 3 medical groups

Dr. Snider's primary practice is Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health. Dr. Snider is also affiliated with Dignity Health - Marian Regional Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Snider to 3 more group practices and clinics and 2 medical groups, each named with a free account.

See all 8 affiliations for Dr. Snider

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Margaux K. Snider's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Snider practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - French Hospital Medical CenterAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Margaux K. Snider is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Snider's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Snider is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Snider's licenses on file in 2 states: California and Delaware.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A125626 · 2013 to 2026 · taxonomy 207P00000X
  • Delaware licenseLicense C70004094 · 2011 to 2021

Emergency medicine physicians near Dr. Snider

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Margaux K. Snider billed Medicare for 865 services in 2024

CMS data shows 865 Medicare services from Dr. Snider across 8 procedure codes in 2024, for 561 Medicare patients. Medicare paid $78,882 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024865
Medicare patients561
Paid by Medicare$78,882
Procedure codes8

Dr. Snider's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 7862024: 61222%
Tests and treatments
2023: 3072024: 25318%

Dr. Snider compared with the California median for emergency medicine physicians, 2024

  • Dr. Snider
  • California median
Medicare services
865vs 2653.3 times
Medicare patients
561vs 2432.3 times
Part D claims
239vs 623.9 times

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Snider's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Snider

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Margaux K. Snider treated 561 Medicare patients in 2024, average age 76

CMS counts 561 Medicare patients who saw Dr. Snider in 2024. The largest group is 75 to 84, with 215 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.79, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Snider's median patient age at 48, with 60% women.

Medicare patients, 2024561
Average age76
Average risk score1.79
Also on Medicaid28%

Dr. Snider's Medicare patients by age, 2024

Dr. Snider's Medicare patients by sex, 2024

  • Women34461%
  • Men21739%

Chronic conditions among Dr. Snider's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis50%
  4. Mood disorders37%
  5. Anxiety36%
  6. Depression34%
  7. Chronic kidney disease31%
  8. Diabetes31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Snider's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 48

Patient panel by sex, all payers

  • Women60%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Margaux K. Snider wrote 389 Medicare Part D claims in 2024

In 2024, Dr. Snider wrote 389 Medicare Part D claims for 227 patients. 89% of them were for generic drugs. CMS names the drug for 239 of them, across 11 drugs with 11 or more claims each, at $11,227 in total drug cost. In 2023, CMS named 275 claims across 12 drugs.

Part D claims, 2024389
Drugs named by CMS11
Total drug cost$11,227
Part D patients227

Dr. Snider's Part D claims by kind of drug, 2024

  • Generic345 claims89%
  • Brand-name and other44 claims11%

Dr. Snider's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Snider's Part D claims, 2024

  • Opioids14%56 of 389 claims
  • Antibiotics26%101 of 389 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2752024: 23913%

Drugs named by CMS: 11 in 2024, 12 in 2023.

See all prescribing by Dr. Snider

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Margaux K. Snider scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Snider for performance year 2024, reported as part of a group. Dr. Snider accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Snider's MIPS scores, performance year 2024

  • 97of 100Final score
  • 90of 100Quality
  • 40of 100Improvement Activities
  • 78of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Margaux K. Snider graduated from OHSU School of Medicine

Dr. Snider graduated from OHSU School of Medicine in 2008.

  1. Medical schoolOHSU School of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Margaux K. Snider accepts plans from 3 insurance carriers

Dr. Snider is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, CMS Medicare and RI State Medicaid. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Massachusetts
  • CMS Medicare
  • RI State Medicaid

Plan types Dr. Snider accepts, by number of carriers

  1. Medicare2
  2. Medicaid1
  3. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Margaux K. Snider's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Margaux K. Snider

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Margaux K. Snider's NPI number?

Dr. Margaux K. Snider's NPI number is 1659538999. It was assigned on May 22, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Margaux K. Snider?

Dr. Margaux K. Snider is an emergency medicine physician in San Luis Obispo, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Margaux K. Snider practice?

Dr. Snider practices at 1911 Johnson Ave, San Luis Obispo, CA 93401. Dr. Snider's primary practice is Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health. Dmand AI also links Dr. Snider to 3 group practices and clinics and 2 medical groups.

What is Dr. Margaux K. Snider's office phone number?

The practice phone on file for Dr. Snider is (805) 543-5353.

What is Dr. Margaux K. Snider's medical license number?

Dr. Snider holds California license A125626, one of the licenses on file in 2 states.

Which states has Dr. Margaux K. Snider been licensed in?

Dmand AI has state licenses on file for Dr. Snider in California (2013 to 2026) and Delaware (2011 to 2021).

Which hospitals is Dr. Margaux K. Snider affiliated with?

Dr. Snider practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California. Dr. Snider is also affiliated with Dignity Health - Marian Regional Medical Center.

What medical group is Dr. Margaux K. Snider part of?

Dr. Snider is linked to Vituity. Dmand AI links Dr. Snider to 2 more medical groups.

Does Dr. Margaux K. Snider accept Medicare?

Yes. CMS data shows Dr. Snider billed Medicare for 865 services in 2024, and Dr. Snider accepts Medicare assignment.

What is Dr. Margaux K. Snider's MIPS score?

Dr. Snider's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Margaux K. Snider see?

CMS counts 561 Medicare patients who saw Dr. Snider in 2024, with an average age of 76.

Is Dr. Margaux K. Snider board certified?

Yes. Dr. Snider is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. Margaux K. Snider bill to Medicare?

In 2024, Dr. Snider's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).

Where did Dr. Margaux K. Snider go to medical school?

Dr. Snider graduated from OHSU School of Medicine in 2008.

What drugs does Dr. Margaux K. Snider prescribe most?

In 2024 Medicare Part D data, Dr. Snider's most prescribed drugs by claims were Ondansetron ODT, Cephalexin and Prednisone.

How long has Dr. Margaux K. Snider been practicing?

Dr. Snider graduated from medical school in 2008, 18 years ago.

What insurance does Dr. Margaux K. Snider accept?

Dr. Snider is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, CMS Medicare and RI State Medicaid. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

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